Hi @smayani, Thanks for your response, considering a Production environment where too many writes are being performed on the regions hosted by that RS in parallel, do you suggest that we need to have an application downtime when we take a graceful shutdown of RS for the time when HMaster performs a bulk reassignment of regions. Also, when we use move command in hbase shell to move a region to new RS, is there any impact on a running job if it is writing data to the same region. ... View more